Friction-clutch.



P. DAIMLER.

FRICTGN ULUTJH. yrLmATIon mm) mv. 1a, 19m

ztfanted Imm 27, 1911.

2 SHBBTSSHEET 1.

iff/M5649; ,A

P. DAIMLER.

FRIUTION CLUTCH.

APPLICATION FILED Nov.15. 1910.

Patented June 27, 1911.

B SHEETS-SHEET 2.

iff/M5 .Mw

4 light spring i.

A:PAUL DAIMLER, 0F UNTERTRKHEIM-BTUT maar, cnnmam,assto1ioa-ro 'ma man 0F DAIMLER MOTOBENGESELLSCHAFT, TUF UNTEBIIBBHEIM-STUTTGBT, GER- FBICTION-CIUTCH.

V'spannenden of Lenen Patent. :Patented June 27, 191 1.

Application led November 15,4910. Iertal lo-592,418.

To all 'u2/mm it 'may concern:

Bc itknown that l. PAH. DAIMLER, a subject-of the lling of Vtiirtemberg, and resident of Untertrkheim Stuttgart, in the King 'do'n ofy Vi'il'tcmberg, German 'Emhave invented certain new and useful Improvements in Friction-Clutches, of which the following is a specification.

'llie present invention relates to improvements in friction clutches ofthe type in which a friction cone is moved axially on its shaft :against 'the action of a sprin away from a lcorresponding conical sur ace secured onthe'other shaft when Ait is desired to open the clutch.

According to this invention the 'spring closed cluth is'opened 'and released byI toggle lever mechanism which enga on efone han'd -with the axially movab e 'friction coneand on the other-hand with a part on the shaft which carries this friction' cone. By this means the shaft isfreed from the load or pressure ofthe springelfecting the closing of the clutch and it need onoy be subjected to this pressure duringthe short period f time requredfor closing or `opening the clutch.

Au example of a form of construction of thc subject matter of the application is shownV in the drawing.

Figure l shows partly in and partly in vertical section, a clutch suitable for an automobile vehicle. Fig. 2 is a plan with the pedal for operating the clutch omitted. Fig. 3 is a section upon the line At-B of Fig. l. i

On the motor-shaft side elevation a is mounted the flyiwheel b which carries the hollow cone sur-5 face @,of the clutch or coupling. Against this hllow'cone surface c is pressed a friction cone It axially movable on the driven shaft y, the cone li, being under the inuence of the spring ,t seated against a ball bearing cup or ring il. A ball bearing k lies against the outer surface of the friction cone h and this bearing k is under the influence of a The arms Z m of a toggle lever mechanismenga e or are connected res 'ectively with the all bearing rings lc andfnon the shaft g, the ring n being secured against axial displacement. Vertically moyable rods o are engaged with the joint of the toggle lever arrangement lm, the other endsof'these' rods being pivotally secured to arms p ofthe foot lever shaft q.

The spring f which tends alwaysto more thc friction coneh to the right, presses thiscone 'h against the corresponding cone surface 'c iand thus normally maintains the clutch closed. When the clutch is to be opened the sliding rods o are moved downward by pressing down the foot le'ver. Thereuponfthe'toggle levers l m b y spreading apartnmovelthe ballbearing ring A' and therefore also thefriction cone h to the left, so that' the cone h isfremoved 'from engagementwith'the cone surface c. Upon the releasing of7 the foot lever the spring freturns lie" clutch i parts' back intoathe coupling posi- `1. lA Aff-'ictiori cone clutch comprising, in combinationa shaft, a vfriction element fixed onjsaill shaft 'andhaving a conical friction sai'd 'first lshslft, anti-:friction devices l intermediate said shafts, al second friction element s plined on said second shaft and having a conical friction s uface, means "for normally holding said friction surfaces n engagement, a fixed part on said second shaft and toggle lever mechanism opra.- tively connected between said fixed part and said second friction element and operating to disengage said friction surfaces.

. 2l combination a shaft, aA friction element fixed on said shaft and having a conical friction surface, a second shaftlaxially alined with said first shaft, anti-friction devices intermediate said shafts.4 a second friction element splined on said second shaft and having a conical friction surface, means axially arranged intermediate said friction elements for normally holding said friction surfaces in engagement, a fixed part on said second .shaft and toggle' lever mechanism operatively connected between said fixed part and said second friction element and operating to disengage said friction surfaces.

3. A friction cone clutch comprising in combination a shaft, a friction element fixed on said shaftand having a conical friction surface, a second shaft, a second friction element splined on said second'shaft and having a conical friction surface,

meansaxia ly aoO A friction cone'clutch comprising, in-

arranged intermediate said friction elements, for normali) holdin said. friction surfaces in engagement, a col ar loose on said second shaft, anti-friction devices intermediate said loose collar and said second friction element, a fixed part on` said second shaft, a second collar loose on said second shaft but ircrented from axial displacement, anti riction devices intermediate said fixed part and said second loose collar, a light spring intermediate said collars and tending to maintain them in contact with the anti-friction devices, and means connected to said collars and operating to force them apart and thereby disengagfv said friction surfaces.

:L A friction cone clutch comprisinv in combination, a shaft, a friction'elen'ient xed on said shaft and having a conical friction surface, a second shaft, a second friction element splined on said second shaft and having a conical friction surface, means axially arranged intermediate said friction elements, for normally holding said friction surfaces in engagement, a collar loose on said Second shaft, anti-friction devices intermediate said loose collar and said Second friction element, a fixed part on said second shaft, a second collar loose on said second shaft but revented from axial displacement, antiict-ion devices intermediate said fixed part and said second loose collar, a

light spring intermediate said collars and tending to maintain them in contact with the anti-friction devices, and manually operated toggle lever mechanism intermediateJ said collars and operating to force them apart and thereby disengagc said friction snrfac y, y

friction cone clntch comprising` in combination a shaft, a friction element fixed en said shaft and havinga conical friction t arranged intermediate said friction elements' for normally holding said friction surfaces in engagement` a collar loose on said second shaft, anti-friction devices intermediate said loose collar and said second friction element, a fixed part on said second shaft, a

second collar loose on said second shaft but prevented from axial displacement, antifriction devices intermediate said fixed part and said second loose collar, a light springr Vintermediate said collars and tendin to maintain them in contact with the anti-friction devices, and manually operated to gle lever mechanism intermediate said co ars and operating to force them apart and thereby disengage said friction Surfaces.

In witness whereof I have hereunto Set my hand in the presence of two witnesses.

PAUL DAIMLER.

W'itnesses:

Bonnin UHLAND,

Eiins'r F. ENTENMANN. 

